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Tire production date to distinguish the I have to counterfeiting:

The tires are rubber, so also the phenomenon of aging of rubber. The shelf life of the tire rubber is generally 4-5 years. Tire & Rubber shelf life will be accelerated aging lead to tire performance.

As shown above, the “9MCR0810 BP-2L12 battery tire manufacturing date code. Among them, the last four, “0810″ indicates that this tire is the product of the “10″ “8″ weekly production.

Will look at the tire production date does not mean that the tires you buy new. Some unscrupulous traders to modify the production date stamped on the tire through a dedicated mold, as the inventory of expired tires are brand new tire sales, earn high spreads. In general, unscrupulous traders by grinding or remove the original purpose of tire production date on the logo, and then paste the new logo of tampering tire production date. Therefore, these rescheduled date of manufacture of the tire logo and tires is not a whole will generally identify the edge with seams or irregularities. Consumers when buying tires should be noted that identifies the location of the edge of the tire production date whether there is a seam or uneven, avoid buying CANON lp-e5 camera battery inferior “rescheduled tire.

Tire installation when the medial and lateral direction:

Reverse mounted inside and outside tire will make the drainage performance of the single-oriented and non-symmetrical tread pattern tire grip compromised. Such as anti-wear, inside and outside the tire appear immediately to the repair shop to re-install the Compaq laptop batteries tire.

Tire lateral generally will be printed with the word “OUTSIDE”, production date or “DOT” mark. By three kinds of identity which is able to judge the outside of the tire.

The lightest point of the tire sidewall logo:

Tires as a CANON np-e3 camcorder battery rubber compound, the mass distribution is difficult to be absolutely uniform. Some vendors will tire in the tire wall is marked with the lightest point ID. The wheel consists of three parts: wheels, tires, valve. Wheel installation, the largest of the quality of the location of the valve, and therefore tires should be installed to tire the lightest point identifies the corresponding valve installation, play a complementary role, so that the tire’s overall mass distribution of the balance.

Tire wall vibration point identification:

The tire vibration point identification identifies the maximum point of the tire longitudinal steel. Identifies the location of the vibration point of maximum vibration point in the process of tire revolution. Tire rotation a week, on the ground every angle it through exposure to vibration forces are not equal, a phenomenon known as RFV (Radial Force Variation). When the RFV too large, tire vibration, impact of MB-D80 Battery Grip vehicles will have to be perceived by the driver driving comfort. Large tire manufacturers in product testing tires marked the location of this point, such as excessive tire vibration value will be as waste disposal. The largest tire vibration point mark for the significance of the consumer in the market, you will not see the markings on all products. RFV parameters as a tire material homogeneity an important criterion for testing on the RFV is the product quality inspection must be carried out by the tire companies in the Acer Aspire One A150 battery production process.

Summary:

This article describes the four little-known tire knowledge. Including: the rescheduled tires, the tire lateral identity, the identity of the lightest point and the maximum vibration point logo. In the purchase of tires should be carefully observed, avoid buy rescheduled tire. Will have to pay attention to the identity of the lightest point corresponds to the valve on the wheel and tire installation. At the same time the outside of the tire during installation must be outward. To do the 3:00 and maintenance of tires can be in a reasonable method to ensure the security of your wireless doorbell intercom tires.

The total U.S. population, but more than two hundred million cars was as high as 130 million, an average of every 1.3 people have one. China has 1.2 billion population, car ownership but less than two million per thousand people only have one, the gap is so great! Even if compared with other Asian countries, China can be considered backward.

With China’s sustained and rapid development and changes in people’s consumption concept according to the automotive industry experts predict that China will become one of the largest Canon BG-E8 Battery Grip consumer country in the world’s cars, the cars in China in the next decade or two there will be The rapid increase. In the near future, the car will generally acquire life skills, the car is no longer a sign of privileged people, will be the means of transport for people to go out. Then when people have a car, no doubt Xiang times to. Occasional cleaning of the car care and regular beauty maintenance, is bound to become the people’s daily consumption of content.

The other hand, China’s major cities, although it has developed rapidly, but the construction is not complete, the lack of parking, so a lot of cars can only open habitat, suffering from wind, rain, sun’s frustration, causing the sony camera battery car aging. This makes the existence and development of the car care industry with the conditions.

Second, there is the question

Currently, the Car Care For most owners, or a strange concept. The number of shake cloth Cleaning family, still use detergent, APPLE A1185 Battery dish detergent (the paint, acid, alkali and corrosive effect), buckets of dirty water pollution in the urban environment. According to statistics, each year fall into the hands of the rub of Cleaning family fare, there are three billion.

In addition, because the car care industry has a flexible, simple to operate, higher profits, lower risk, therefore a large number of car wash shop, automotive accessories boutique, tire shops, auto repair factory and individuals rushing into the automotive beauty market to gain market share, resulting in an increasingly competitive market.

But automotive beauty specialization requirements are very high, is a new concept, so it is essentially different from the car wash Cleaning, waxing, polishing, etc. According to the survey, many automotive beauty shops in the market is “no professional formal training, professional brand-name products, specialized machinery and equipment, quality of service of four situation. Moreover, since the management system of the country on this emerging industry is not sound, plus the consumers lack of understanding of the industry, so the Compaq 319411-001 battery market have appeared in some patchwork together automotive beauty products. These no-name is a clever camouflage and a gorgeous advertising the name of the import professional brand under the banner of a number of fake and shoddy products Kengpian the majority of users. But with the car care market continues to standardize and improve consumer awareness, and shoddy products will be nowhere based, non-professional services, automotive beauty shops if not change the status quo will be eliminated. How to gain a foothold in the automotive beauty care industry, to develop and grow, has become the concern of every people in the industry.

Direction for the solution of the problem

The first is the NIKON en-el3 battery national industry is necessary to strengthen macroeconomic management, a sound system. In August 1995, the State Council, a conference call with explicit requirements for the municipal authorities banned Cleaning family. In May 1996, held in Chengdu, the national “meeting on regulating the cleaning of vehicle management, vehicle service should be gradually standardized management.
 
Second, with the maturing of urban management, with the family car on the popularization of knowledge of HP Compaq Business Notebook 8500 Battery automotive beauty and improve, as well as the mature development of the automobile beauty market, consumer awareness of people’s continuous improvement, these phenomena will be greatly improved, a variety of The problem will be solved, and to promote the automobile beauty toward health, to move forward on fast track of development.

Fourth, the prospects for the development of automotive beauty shops

The financial crisis, China’s economy is beginning to reveal the warmth. China’s economy has completed the first quarter of 2009, there have been signs of recovery, the Chinese government launched a package of the effectiveness of control measures is significant, and the various rescue measures have proved effective. First of all reveal HP Compaq 6735s laptop battery encouraging signs is the automobile and other industries by the National Automobile revitalization plan and other policy incentives, the domestic automobile market continued to pick up, 1-2 months, car sales reached 1,563,600, an increase of 2.7 percent, the domestic automobile market is hot in March exception, sales broke the one million. A quarter of total domestic car sales reached more than 2.64 million vehicles, up nearly 6 percent.

With the continued growth in private car ownership in China, the development of the automotive service market space is expanding. The development of the Chinese market automotive service industry is still in its infancy, but will remain strong urban car owners, group car service needs. There are still huge space for the operation of the consumer to pursue and market supply. 2010, China will scale up to 100-150 million yuan huge Universal Solar Charger for Laptop automotive service market.

Electric vehicles continued line kilometers simply is one charge can travel a few kilometers. In fact, electric cars continued to line kilometers affected by many factors, the state of electric vehicle battery technology, riding riding ways and habits, driving conditions (temperature, road conditions, load size, etc.), various uncertainties of electric The car continued line kilometers greatest impact.

National standards of CANON np-e3 battery electric cars electric vehicles continued kilometers less than 25 KM today’s electric cars 25 ㎞ far can not meet a considerable portion of the user’s requirements. At present, the use of electric vehicles, high-speed long-distance driving. The electric car manufacturers cater to this demand of the electric car market, electric vehicles continued line kilometers has improved a lot. Ambient temperature is not less than 20 ° C under normal driving conditions of the new electric vehicle batteries and single-Ping Road, configuration 12Ah 14Ah laptop batteries, electric cars continued kilometers 40 ㎞ 45 ㎞; configuration 17Ah 20Ah battery car, continued kilometers of electric cars is generally 90 ㎞ 100 ㎞. This continued line kilometers measured data. Nevertheless, the continuation line kilometers short and the consequent disputes occur frequently, and to deal with the difficulty is after-sales maintenance. Then, in the after-sale maintenance, how to deal with electric cars continued Mileage? Electric vehicles continued kilometers short fault diagnosis and exclusion?

Electric car non-fault continued kilometers short due to the continued electric car dealers kilometers short causes and complex, often caused by poor physical entity to run due to the car, but “artificial” or objective conditions due to the non-fault Xing continued kilometers short.

For example, the Solar Charger for Laptop ultra-scratch, the brakes acute power, uphill against the wind manned weight of the whole to travel unscientific mode of operation and riding habits, will result in the continuation line kilometers short.

In addition, long-distance high speed will cause continued kilometers short. The same road, under the same conditions, the part of the Dell Latitude D630 Battery electric car turn to make it to the appropriate low speed, full to high speed it is possible to run less than; lower temperatures, the same will result in the continuation line kilometers short. Usually 25 ℃ and 0 ℃ temperature cycling, the continued line kilometers of the former is two times that of the latter; continued line kilometers of old used car battery definitely shorter than the new car a new battery. Maintenance practice, the continued line kilometers short of belonging to the above non-fault is not uncommon. In such circumstances, to be patient and give the user the reason it clear. User’s use and level of maintenance, reducing the running costs of electric vehicles, we provide quality service.

Failure of electric vehicles continued line kilometers short, that is to continue the physical entity of the car is running bad kilometers short.

On the electric car fault resistance continued kilometers short diagnostic methods are as follows:

First to detect the electric vehicle batteries. Electric vehicle battery is continued kilometers short culprit:

Sulfide and severe dehydration, Canon BG-E2N Battery Grip and plate short circuit and open circuit, the single cells off the grid and electric vehicle battery pack consistency and poor battery failure, the main cause electric vehicles continued kilometers short. The topic of another paper discusses the fault detection of electric vehicle batteries.

By detecting the electric vehicle batteries, no problem, it is necessary in order to do other tests, or to find other reasons.

(1) Check the charging jack is loose electric vehicle charging jack loose electric vehicle battery charging and dissatisfaction electric, not only caused by the electric car continued kilometers short fault, the largest loss of electric vehicle batteries, long-term loss of electricity to run the user quietly I do not know , eventually leading to electric vehicle batteries, early retirement, the seriousness of the problem lies in the case of this “low error” is really not a minority. The locking of the electric vehicle charging jack retire electric car manufacturers MB-D10 Battery Grip electric car dealers are facing a pressing problem.

Make up, all maintenance need to open the battery compartment, must be the way to check the charging jack is loose and rehabilitate tight.

2 electric vehicle brake power-off function is effective electric vehicle brake power-off function is not optional, but must be valid, this can not be vague. Users do not understand the electric vehicle brake power-off function and electric vehicles continued short kilometers relationship extenuating, we as professionals can not correctly understand the IBM ThinkPad T43 Battery relationship between them and blindly follow the user “feel” to go to the user irresponsible.

The electric car brakes offset motor bearing Songkuang other reasons to make the mechanical resistance increases, so that electric cars continued line km of short more worse.

The efficiency of the electric car motors down long high-current output of the electric car motors, motor overheat and lead to severe mechanical vibration magnet demagnetization is the main reason for decline of motor efficiency.

At present, the electric car repair site can not accurately detect the efficiency of the electric car motors, only no-load speed and the electric car motor running fever according to the electric car to roughly determine the efficiency of the Solar Charger for Laptop motor, but that is useless for quantitative diagnosis and maintenance.

In addition, the electric car tire pressure is low, electric vehicle controller parameter drift, the electric car charger parameter drift is caused by the reasons for continued kilometers short fault can not be ignored.

From the above analysis is easy to see electric vehicles continued short line kilometers is a very complex and comprehensive common faults, called incurable diseases of the electric car is not excessive. But regardless of the reason how complicated the development of anything there is a pattern. Fortunately, we have already worked out in practice a well-established method for diagnosis and exclusion. The key is we need to conscientiously sum up these methods to upgrade the technical rules for the real, and there are strict on-site management mechanism to ensure the Acer BATCL50L battery effective operation of these technical rules.

Brush motors and brushless motor power principle is not the same as its internal structure is not the same. Wheel motor, the motor torque output (with or without gear reduction gear reducer) is not the same, its not the same mechanical structure.

A common high-speed brush motor internal mechanical structure. This wheel motor by the built-in high-speed brush motor heart, reduction gear group, beyond the clutch, wheel hub end Canon BG-E8 Battery Grip caps and other parts of the composition. High speed there belong to the inner rotor motor brush gear hub motor.

2, a common low-speed brush motor internal mechanical structure. This wheel motor carbon brush commutation, the rotor, stator, motor shaft, motor cover, bearings and other components. Low speed brush gear hub motors are external laptop battery rotor motor.

3, the internal mechanical structure of the common high-speed brushless motor. This wheel motor built-in the heart of high-speed brushless motor, planetary friction roller, overload clutch, output flanges, end caps, wheel housing, and other components. The high-speed brushless gear hub motor of inner rotor motor.

4, the common low-speed internal mechanical structure of the brushless motor. This wheel motor rotor, stator, the motor shaft, motor cover, bearings and other components. Brushless low-speed gear hub motors are external rotor motor.

Motor wiring methods

Not commutation, brush motors and brushless motor CANON Handle Grip Battery is not only the internal structure is not the same, and the difference in the wiring is also very large.

1 brush motor wiring. Brush motor is generally plus or minus two leads. General red line is the motor positive, the black line is the motor negative. If the positive and negative exchange wiring, except that the motor reversal, generally will not damage the motor.

2, the brushless motor phase angle of the judgment. The phase angle of the brushless motor is referred to as the phase the algebra angle of the brushless motor, refers to the angle of each coil of the brushless motor in a power cycle which within the coil current direction change. Electric vehicles with brushless motor phase algebra angle 120 ° and 60 ° two.

The the concept Chahuo ear component mounting space location to determine the phase angle of the Solar Laptop Battery Panel Charger brushless motor, 120 ° and 60 ° two-phase angle of the motor Hall element mounting space is not the same location.

Phase angle measurement of the true value of the Hall signal to determine brushless motor

Need to first explain you what is called the angle of the magnetic pull of the brushless motor. The number of the magnet brushless motor is generally 12, 16 or 18, which corresponds to the number of stator slot 36 slot 48 slot or 54 slot. When the motor in the stationary state, the rotor magnet of the magnetic field lines the characteristics of walking along reluctance minimum direction, so the location happens to stop by the rotor magnet pole stator slot convex position. Magnet in the stator slot location of the heart will not stop, so that the rotor and stator relative position of only 36, 48 or 54 kinds of this limited number of locations. Therefore, the minimum magnetic pull angle of the brushless motor is 360/36 ° / 48 ° or 360/360 54 °.

The brushless motor of the Hall elements 5 lead, respectively, the Hall components of the public power supply positive and negative terminal of the public power, A Hall of output, the output of the B  HP ProBook 4416s battery pack phase Hall and C Hall output. 5 Hall leads, we can take advantage of the brushless controller (60 ° or 120 °) the positive and negative power of the brushless motor Hall component leads connected to the rest of A, B, C, three phase sensor leads. arbitrarily connected to the controller Hall signal lead wire. Power to the controller by the controller to the supply of the Hall elements can be detected brushless motor phase angle. As follows: 20V DC voltage with a multimeter block, and ground of the black pen line, the red pen were used to measure the voltage of the three leads, three leads and low voltage in the record. Motor rotates slightly, so that the motor turned the point of view of a minimum magnetic pull, and again measure and record the high and low voltage of the three leads, such a measurement record six times. We use a high potential to low potential to 0, then – if it is 60 ° brushless motor, continuous rotation of the six smallest magnetic pull angle, then Canon BG-E6 Battery Grip measure the Hall true value of the signal should be: 100,110,111 , 011,001,000. Adjust the pin order of the three Hall elements lead to the true value of the signal sequence changes in strict accordance with the true value of the above, so that the brushless motor for 60 ° A, B, C three phase to judge them.

120 ° brushless motor, continuous rotation of the six smallest magnetic pull angle, Hall measuring the true value signal should be in accordance with 100,110,010,011,001,101 the law changes, such as Hall elements lead power The phase sequence on the judge.

Brushless motor wiring. 3 brushless motor coil lead and the lead of Hall 5, 8-lead and the replacement Acer Aspire 5500 battery corresponding controller lead one to one, otherwise the motor does not rotate.

Generally speaking to the 60 ° and 120 ° phase angle of the brushless motor, driven by the corresponding 60 ° and 120 ° phase angle of the brushless motor controller, both the phase angle controller can not be directly interchangeable . The correct wiring of the brushless motor in the 60 ° phase angle and 60 ° phase angle controller is connected to the 8 line, a forward and a reverse.

Brushless motor for the 120 ° phase angle, the correct wiring of the eight line connected to adjust the coil leads the phase sequence and phase sequence of the Hall leads, motor and controller have six kinds, three kinds of connection motor is turn, and three kinds of connection motor reversal.

If the brushless motor is reversed, brushless controller and the battery for Aspire One A110 phase angle of the brushless motor is matched, we can adjust the rotation of the motor: brushless motor and brushless controller Hall leads exchange wiring; the same time, the main phase of the brushless motor and brushless controller A, B, exchange of connection.

1, long focal length

What is the best portrait lens shot? A medium telephoto zoom or fixed focus lens can handle. If you use the 35 mm film shot, this means that you should use 85-135 mm focal length lens. Due to a shorter focal length (50 mm or less) often shoot portraits of people facial features exaggerated, and sometimes makes the nose appear large than the actual, you will make friends, thus disappointing.

Often referred to as portrait lens with the 85-135 mm longer lens, the perspective is somewhat compressed, so that facial features would show the correct ratio. To use more than the 200 mm focal length lens, then make the face look peaceful.

Telescope with a moderate head portrait results were better. 35 mm wide-angle lens with a close shot of the face too ugly. But with 105 mm focal length portrait lens compresses the perspective taken and facial features,HP Compaq NX7400 battery the performance of the subject who was naturally pleasing to the eye.

2, close to the point

Portrait photographers have no experience of failure is another reason they did not shoot as close as possible. If you shoot the characters on the screen is too small, so that their faces and expressions can not be the center of the picture at a glance the performance, then the results have sent. The solution is then close to some shooting. You went up to close to being photographed, or shooting with longer focal length lens. Nearly produced the United States. The famous war photographer Robert Capa said that if your picture looks good enough, it is because you are not relying on the past. Portrait photo of it which is of course right. The above photo was taken at a distance of 15 feet, both not really portraits, is not really city photos. The following figure, as close to being photographed, the effect is the portrait of no one doubt it, but also a successful portrait. By the way, the figure still another common problem, that person’s head at the center of the frame. In the portrait composition, we should try to keep the relevant departments in the upper half of the screen.

3, the use of large aperture

In the living room you built a small studio, you can certainly shoot for the children than the supermarket share in the establishment of a better self-photography’s photo. One thing to note is that you should avoid using a small aperture f/11 to f/22. With a small aperture for shooting in bright light scenery is good, but will be a problem for shooting portraits. Small aperture makes the background look very clear, it will divert the attention of being photographed. f/1.8 to f / 4 large aperture bokeh can make in out of focus, and let the mothers and children to become the only people concerned about the mother and son photo of the target.battery for Toshiba PA3420U-1BRS battery
However, large aperture has the potential to shallow depth of field, if the camera’s eye than the other farther away from the camera, then the distance of the eye may be in focus away. The remedy is to discard the background when shooting so that you can use a smaller aperture of a block, or adjust the position was reported on the head, eyes and cameras to the same distance.
      You have to show is that you be proactive rather than a background. In the above painting portraits taken with the f/16 on the background is quite clear. People will try to distinguish between what is or where it is. In the bottom piece of a more powerful shot with the f/2.8 portrait does not exist on the background of distracting issues. People’s attention will focus on the desired place in the photographer: those who were taken. However, virtual background is not always necessary. You may wish to try making an environmental portrait, for which you need to keep around the clear background and detail through the environmental features to be introduced being photographed.

4, try vertical picture composition

Portrait photography is one common mistake made by novice is to portrait made into a horizontal screen. The composition across the screen is good for the group portrait, but when you shoot a single person to take the camera to the vertical screen position. Jian more suitable for single-frame shooting portraits, because the frame itself or with the head vertical head and upper body corresponds to a rectangular shape. Vertical structure is also suitable for dry couples photo shoot, especially when they embrace the time. Intimate romantic couple make vividly demonstrated.

Using cross-frame to the attention of some problems.Compaq tc4400 battery For example, the banner above portrait is good, but please take note of the way from the chest cut so that the screen seems stiff and unnatural. Of people to choose the most natural cut the narrowest parts of the body, such as the neck and waist. The figure on the subject’s vertical screen viewing the site using this cut to achieve a relatively balanced and satisfactory composition.

5, to avoid the glaring light

Portraits from scratch is to use the most taboo down on top of direct sunlight. It will orbit, around the nose and chin caused by shadows. To avoid this destructive effect of light, professional portrait photographer like the shade of the open space use, such as a sunny day under the big tree, surrounded by a large number of reflected light can be on local shadow fill light, in the face of the formation of character is not smooth shadow lighting.

If you have to capture portraits at noon, you can easily create their own shadow of an open back condition that allows those to be taken back to the sun, technically called backlighting. This is your camera light meter will form a challenge, here are ways to solve this problem. To improve the above results taken with the direct sunlight, can be a translucent white umbrella blocking the sun at noon. Another approach is to use the lighting to solve the problem, but the light around the subject who would interfere with your exposure meter caused by lack of character. To avoid this situation, you should be photographed near the facial measurements taken directly from the exposure readings. Or if you can persuade the camera a little meter, then use it to take the subject by measuring the reflected light of the face better.

6, choose a simple dress

Dizzying color clothing will only shift the audience’s attention on the subject. To use the simple design and quiet colors. If you plan to shoot some casual portraits, you can hand a simple T-shirt standing. For Otsuchi camera, put a piece of red or blue satin material resting on her upper body around with other external fixation, to replace the strapless evening dress or open collar. If you encounter when shooting was photographed wearing a timely fashion is not Taiwan, will have to find ways to change this. Composition on the screen can be handled more compact and thus avoid the flashy pieces that shirt, or light the area at the time of the shirt to stay in the shadows,Price of Toshiba PA3420U-1BRS battery
and to face relatively more brighter.

People dress to keep it simple. Fancy dress make people put those features on the subject of attention to people who (above). In color, keep it simple dress is usually effective. Bright primary colors can add angry portrait (below). But should be selected to be photographed with the true nature of good fit of the clothing. If possible, choose to be photographed clothing colors, this effect will be the best. Almost all people know what color will make them look best. If he or she dressed in clothing that matches the color, then the subject’s sky blue or Caise eyes will be more apparent. (Red, green, blue complementary color is yellow, magenta, blue)

As the diversification of rotating machinery, which produces a vibration, noise, and so on mechanical life increasingly demanding, the rotation of the workpiece must be selected for different characteristics suitable for their balancing machine, and the corresponding imbalance correction, the following simple describes how to select the model.

Step 1: Select balancing machine, the first battery CANON BP-2L12 feature under the rotation of the workpiece shape, select horizontal or vertical balancing machines, of course, if you have special requirements, you can also design and manufacture according to actual needs.

Horizontal balancing machine —- is the axis of rotation of the rotor balancing machine to balance the balance on the horizontal state machine, in general, with a shaft or rotor shaft assembly process, such as the rotor, spindle, drum, fan, turbine, turbocharger rotors, etc., are applicable to horizontal balancing machine.

Balancing Machine —- is the axis of rotation of the rotor battery CANON np-e3 balancing machine was plumb in balancing the balance of the state machine, generally refers to the rotor shaft itself does not have a disk-shaped parts such as gears, various car flywheel, clutch, pressure plate and assembly, brake disc, brake drum, motorcycle clutch and the magnetic rotor, fan, fan, water pump impeller, pulley, wheel and other disc-type parts, I produced the PHD series of vertical balancing machines to meet the specifications of the disc-type parts of the balance, and vertical balancing machines series for double-sided piece itself does not have the shaft of the drum-shaped parts of the dynamic balance, such as automotive wheels, rims, centrifuge drum, etc.

Step two: choose the form according to the battery CANON lp-e10 rotor drive is a ring or belt drive gimbal balancing machine Balancing Machine balancing machine or self-driven, rotor balancing machine drag circle drive way with a drag, drag, and self-coupling drive.

Drag the circle with the use of rubber —- with or silk circular ring belt, drag from the motor pulley rotor, so drag the required circle with a smooth rotor surface must be cylindrical surface, drag the circle with the advantage of not affecting rotor unbalance, balancing and high accuracy.

Coupling is the use of drag —- universal joint to the spindle and rotor balancing machines connected. Coupling is characterized by dragging the rotor for the appearance of irregular, you can pass a large torque, suitable for drag and other drag big fan rotor, coupling drag the battery Dell XPS M1530 disadvantage of coupling unbalance itself will impact on the rotor (and therefore coupling to be in balance before use), will introduce interference affect the balance of accuracy, in addition to doing a lot of connection plate to accommodate different types of rotor.

Since the drive —- its own power is the use of rotor rotation. Since the drive is minimal impact to balance the accuracy of the drag way to balance accuracy is up to the highest, but only the special structure of the rotor in order to allow the use of this dragging.

The third step: selection based on the size of the workpiece, such as the type of battery Dell Studio 1555 workpiece, diameter, length and weight, speed and other characteristic parameters, select the size of type dynamic balancing machine, such as 5,16,50,160 type, etc., numbers indicate the workpiece quality, generally selected number 1 / 3 to 2 / 3 of the dynamic balance is better, maximum or minimum values ​​can be done, but not necessarily able to meet the accuracy of the battery Dell INSPIRON 9300 workpiece.